Patents by Inventor Changhua Tang

Changhua Tang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Inhibitors of influenza virus replication, application methods and uses thereof
    Patent number: 11225477
    Abstract: The invention provides a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: January 18, 2022
    Assignee: Sunshine Lake Pharma Co., Ltd.
    Inventors: Yingjun Zhang, Qingyun Ren, Changhua Tang, Xiaohong Lin, Junjun Yin, Kai Yi
  • Influenza virus replication inhibitor and use thereof
    Patent number: 11104689
    Abstract: Disclosed are a compound as shown in formula (I) as an influenza virus replication inhibitor and a preparation method therefor, a pharmaceutical composition comprising the compound and the use of the compound and pharmaceutical composition thereof in the treatment of influenza.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: August 31, 2021
    Assignee: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Changhua Tang, Qingyun Ren, Huichao Luo, Junjun Yin, Kai Yi, Yibo Lei, Yejun Wang, Yingjun Zhang
  • Inhibitors of influenza virus replication and uses thereof
    Patent number: 11098042
    Abstract: Provided herein is inhibitors of influenza virus replication and uses thereof. Specifically, provided herein a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: August 24, 2021
    Assignee: Sunshine Lake Pharma Co., Ltd.
    Inventors: Qingyun Ren, Changhua Tang, Junjun Yin, Kai Yi, Yibo Lei, Yejun Wang, Yingjun Zhang
  • Inhibitors of influenza virus replication and uses thereof
    Patent number: 10987354
    Abstract: The invention provides a class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: April 27, 2021
    Assignee: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Changhua Tang, Qingyun Ren, Junjun Yin, Kai Yi, Yibo Lei, Yejun Wang, Yingjun Zhang
  • Inhibitors of influenza virus replication and uses thereof
    Patent number: 10927118
    Abstract: A class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: February 23, 2021
    Assignee: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Changhua Tang, Qingyun Ren, Junjun Yin, Kai Yi, Yibo Lei, Yejun Wang, Yingjun Zhang
  • INHIBITORS OF INFLUENZA VIRUS REPLICATION AND USES THEREOF
    Publication number: 20200339564
    Abstract: Provided herein is inhibitors of influenza virus replication and uses thereof. Specifically, provided herein a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Application
    Filed: January 4, 2018
    Publication date: October 29, 2020
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Qingyun REN, Changhua TANG, Junjun YIN, Kai YI, Yibo LEI, Yejun WANG, Yingjun ZHANG
  • INHIBITORS OF INFLUENZA VIRUS REPLICATION, APPLICATION METHODS AND USES THEREOF
    Publication number: 20200299294
    Abstract: The invention provides a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Application
    Filed: June 9, 2020
    Publication date: September 24, 2020
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Yingjun ZHANG, Qingyun REN, Changhua TANG, Xiaohong LIN, Junjun YIN, Kai YI
  • INFLUENZA VIRUS REPLICATION INHIBITOR AND USE THEREOF
    Publication number: 20200283454
    Abstract: Disclosed are a compound as shown in formula (I) as an influenza virus replication inhibitor and a preparation method therefor, a pharmaceutical composition comprising the compound and the use of the compound and pharmaceutical composition thereof in the treatment of influenza.
    Type: Application
    Filed: September 18, 2018
    Publication date: September 10, 2020
    Applicants: SUNSHINE LAKE PHARMA CO., LTD., NORTH & SOUTH BROTHER PHARMACY INVESTMENT COMPANY LIMITED
    Inventors: Changhua TANG, Qingyun REN, Huichao LUO, Junjun YIN, Kai YI, Yibo LEI, Yejun WANG, Yingjun ZHANG
  • Inhibitors of influenza virus replication, application methods and uses thereof
    Patent number: 10717732
    Abstract: The invention provides a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: July 21, 2020
    Assignee: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Yingjun Zhang, Qingyun Ren, Changhua Tang, Xiaohong Lin, Junjun Yin, Kai Yi
  • Inhibitors of influenza virus replication, application methods and uses thereof
    Patent number: 10647693
    Abstract: The invention provides a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the manufacture of medicaments for treating of influenza.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: May 12, 2020
    Assignee: NORTH & SOUTH BROTHER PHARMACY INVESTMENT COMPANY LIMITED
    Inventors: Changhua Tang, Qingyun Ren, Junjun Yin, Kai Yi, Yingjun Zhang
  • INHIBITORS OF INFLUENZA VIRUS REPLICATION AND USES THEREOF
    Publication number: 20200085822
    Abstract: The invention provides a class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Application
    Filed: December 14, 2017
    Publication date: March 19, 2020
    Applicants: SUNSHINE LAKE PHARMA CO., LTD., NORTH & SOUTH BROTHER PHARMACY INVESTMENT COMPANY LIMITED
    Inventors: Changhua TANG, Qingyun REN, Junjun YIN, Kai YI, Yibo LEI, Yejun WANG, Yingjun ZHANG
  • INHIBITORS OF INFLUENZA VIRUS REPLICATION AND USES THEREOF
    Publication number: 20200010472
    Abstract: A class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Application
    Filed: March 1, 2018
    Publication date: January 9, 2020
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Changhua TANG, Qingyun REN, Junjun YIN, Kai YI, Yibo LEI, Yejun WANG, Yingjun ZHANG
  • Inhibitors of influenza virus replication, application methods and uses thereof
    Patent number: 10501444
    Abstract: The invention provides a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: December 10, 2019
    Assignees: SUNSHINE LAKE PHARMA CO., LTD., NORTH & SOUTH BROTHER PHARMACY INVESTMENT COMPANY LIMITED
    Inventors: Qingyun Ren, Changhua Tang, Junjun Yin, Kai Yi, Yingjun Zhang
  • INHIBITORS OF INFLUENZA VIRUS REPLICATION, APPLICATION METHODS AND USES THEREOF
    Publication number: 20190194159
    Abstract: The invention provides a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the manufacture of medicaments for treating of influenza.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 27, 2019
    Applicants: SUNSHINE LAKE PHARMA CO., LTD., NORTH & SOUTH BROTHER PHARMACY INVESTMENT COMPANY LIMITED
    Inventors: Changhua TANG, Qingyun REN, Junjun YIN, Kai YI, Yingjun ZHANG
  • INHIBITORS OF INFLUENZA VIRUS REPLICATION, APPLICATION METHODS AND USES THEREOF
    Publication number: 20190185456
    Abstract: The invention provides a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Application
    Filed: August 15, 2017
    Publication date: June 20, 2019
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Qingyun REN, Changhua TANG, Junjun YIN, Kai YI, Yingjun ZHANG
  • INHIBITORS OF INFLUENZA VIRUS REPLICATION, APPLICATION METHODS AND USES THEREOF
    Publication number: 20180346463
    Abstract: The invention provides a novel class of compounds as inhibitors of influenza virus replication, preparation methods thereof, pharmaceutical compositions containing these compounds, and uses of these compounds and pharmaceutical compositions thereof in the treatment of influenza.
    Type: Application
    Filed: December 8, 2016
    Publication date: December 6, 2018
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Yingjun ZHANG, Qingyun REN, Changhua TANG, Xiaohong LIN, Junjun YIN, Kai YI
  • Fused ring compounds as hepatitis C virus inhibitors, pharmaceutical compositions and uses thereof
    Patent number: 9802949
    Abstract: Provided are fused tricyclic compounds effective to inhibit the function of the NS5A protein of formula (I), wherein X, X?, Y, Y?, A, A?, Q1, Q2, R1-R4, X4, R5a, f and W are defined as in the description. Also provided herein are pharmaceutical compositions thereof, and uses in the manufacture of a medicament for treating HCV infection or a HCV disorder thereof.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: October 31, 2017
    Assignee: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Yingjun Zhang, Jiancun Zhang, Hongming Xie, Qingyun Ren, Shifeng Li, Changping Fu, Bailin Hu, Xiwei Wu, Changhua Tang
  • FUSED RING COMPOUNDS AS HEPATITIS C VIRUS INHIBITORS, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF
    Publication number: 20150307509
    Abstract: Provided are fused tricyclic compounds effective to inhibit the function of the NS5A protein of formula (I), wherein X, X?, Y, Y?, A, A?, Q1, Q2, R1-R4, X4, R5a, f and W are defined as in the description. Also provided herein are pharmaceutical compositions thereof, and uses in the manufacture of a medicament for treating HCV infection or a HCV disorder thereof.
    Type: Application
    Filed: November 28, 2013
    Publication date: October 29, 2015
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Yingjun ZHANG, Jiancun ZHANG, Hongming XIE, Qingyun REN, Shifeng LI, Changping FU, Bailin HU, Xiwei WU, Changhua TANG
  • SPIRO RING COMPOUNDS AS HEPATITIS C VIRUS (HCV) INHIBITORS
    Publication number: 20150232509
    Abstract: A compound of formula (I) or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate, a metabolite, a pharmaceutically acceptable salt or a prodrug thereof is provided, which can be used for treating HCV infection or a HCV disorder. Also a pharmaceutical composition comprising the compound and the use of the compound and the pharmaceutical composition thereof are provided, which can also be used for treating HCV infection or a HCV disorder.
    Type: Application
    Filed: September 29, 2013
    Publication date: August 20, 2015
    Applicant: SUNSHINE LAKE PHARMA CO., LTD.
    Inventors: Yingjun Zhang, Jiancun Zhang, Hongming Xie, Qingyun Ren, Xiwei Wu, Huichao Luo, Changping Fu, Bailin Hu, Shifeng Li, Changhua Tang, Yong Lei, Quanxing Yu, Qinghong Fang, Chenglin Wang